Apparently, the Hungarian Jews had been forcibly moved into a Jewish ghetto in the early 1940s – with the Dohány Utcai Zsinagóga at the heart.
The deportations and the executions began in 1944 when the Arrow Cross Party came to power. The Arrow Cross was the Hungarian party sympathetic to the Nazi ideals. For a great deal of the executions, they walked them to the banks of the Danube river, made them remove their shoes, and stand at the edge. They were shot and fell into the river.
This memorial features bronze shoes of different sizes and genders to show the non-discrimination about age or sex of the Jews that were killed this way.
This memorial is one of the more moving ones I’ve seen. You should see it for yourself when you go to Budapest.